One interesting character to include would be Punisher. His extreme methods and lack of regard for the law would be a great foil to Daredevil's more law - abiding nature. Spider - Man is also a good choice. His youth and naivete, along with his sense of responsibility, would create some interesting dynamics. And don't forget about Luke Cage. His strength and his loyalty to his community could be a great asset in the story. He could side with Daredevil or be caught in the middle of the conflict between different factions.
Matt Murdock is the obvious choice. His complex character with his blindness, enhanced senses, and moral code makes for great writing. Elektra is also very interesting, with her dark past and her love - hate relationship with Matt.
Percy Jackson himself is always interesting. His courage and ability to face the gods head - on make him stand out. Another could be Annabeth. Her intelligence is a great asset in the chaos of the civil war. She can strategize and come up with plans to help Percy. Also, some of the more minor god characters that are given more depth in the fanfiction can be really interesting. For example, a lesser - known god who has a unique power and a strong motivation in the civil war.
Peter Parker, of course, is extremely popular. He's the central character in most of the fanfiction related to this. His struggle to choose sides and his moral compass are often explored in great detail.
Shepard is often a very popular character in such fanfiction. Since Shepard is a well - known and respected figure in the Mass Effect universe, they can play a crucial role in the civil war, either as a mediator or as a combatant on one side. Garrus is also popular. His combat skills and loyalty make him a great asset in any civil war - related story.
Vision is a character that can be quite popular in this type of fanfiction. His unique abilities and his own thoughts on the Sokovia Accords can create interesting storylines with Spiderman. He can be a source of knowledge and power that Spiderman might look up to or have to oppose, depending on the plot of the fanfiction.
Definitely Iron Man. He's the central figure in this fanfic's side of the story. His high - tech gadgets and his unwavering belief in the need for regulation make him stand out. Then there's Vision. His unique perspective as an android gives a different view on the whole civil war situation. Another interesting character is Pepper Potts. She's not a superhero but her influence on Iron Man and her own moral compass are fascinating.
A great plot could involve Daredevil teaming up with some unexpected characters during the Civil War. Maybe he forms an alliance with a lower - level hero who has a unique perspective on the war. They could work together to expose the corruption and misinformation that is fueling the conflict. Also, Daredevil could have his own internal struggle with his faith during the Civil War. Does he follow the laws that are being imposed during the war or does he follow his own moral code?
I think Naruto and Daredevil are the obvious main focuses. But also, Elektra from Daredevil's world could be a great addition. She could have some sort of connection to a female ninja in the Naruto universe, like Sakura. Sakura could learn a thing or two from Elektra's combat style, and Elektra could be intrigued by Sakura's medical ninjutsu. And then there's also Itachi. His complex backstory and powerful abilities would make for a great interaction with Daredevil, especially considering Daredevil's sense of morality and Itachi's own moral dilemmas.
I think Dom Santiago from Gears of War and Han Solo from Star Wars would be interesting. Dom's loyalty and Han's roguish charm could lead to some really fun and unexpected interactions. They could be on a mission together, with Dom's military skills and Han's piloting abilities complementing each other.
Iron Man is also a top choice. Writers can delve into his motives for supporting the Sokovia Accords and his complex relationship with Captain America. His technological genius can also be a central part of the story, like creating new suits to gain an edge in the conflict.